GPU model | Polaris 21 | G80 |
---|---|---|
GPU variant | Polaris 21 PRO | — |
Architecture | GCN 4.0 | Tesla |
Foundry | GlobalFoundries | TSMC |
Manufacturing process | 14 nm | 90 nm |
Number of transistors | 3,000 million | 681 million |
Die size | 123 mm² | 484 mm² |
Release date | Jun 5th, 2017 | — |
---|---|---|
Generation | Radeon Pro Mac (500 Series) | — |
Production | Active | — |
Interface | PCIe 3.0 x8 | — |
GPU clock | 850 MHz | 600 MHz |
---|---|---|
Memory clock | 1275 MHz 5.1 Gbps effective | 800 MHz 1600 Mbps effective |
Shader clock | — | 1350 MHz |
Memory size | 2 GB | 1536 MB |
---|---|---|
Memory type | GDDR5 | GDDR3 |
Memory bus width | 128 bit | 384 bit |
Bandwidth | 81.60 GB/s | 76.80 GB/s |
Shading units | 768 | 128 |
---|---|---|
TMUs | 48 | 32 |
ROPs | 16 | 24 |
Compute units | 12 | — |
Cache L1 | 16 KB (per CU) | — |
Cache L2 | 1024 KB | 96 KB |
SM count | — | 16 |
Pixel rate | 13.60 GPixel/s | 14.40 GPixel/s |
---|---|---|
Texture rate | 40.80 GTexel/s | 38.40 GTexel/s |
FP16 (half) performance | 1,306 GFLOPS (1:1) | — |
FP32 (float) performance | 1,306 GFLOPS | 345.6 GFLOPS |
FP64 (double) performance | 81.60 GFLOPS (1:16) | — |
Slot width | IGP | Dual-slot |
---|---|---|
TDP | 75 W | 171 W |
Outputs | No outputs | No outputs |
Power connectors | None | 2x 6-pin |
Suggested PSU | — | 450 W |
Board number | — | P357 |
DirectX | 12 (12_0) | 11.1 (10_0) |
---|---|---|
OpenGL | 4.6 | 3.3 |
OpenCL | 2.1 | 1.1 (1.0) |
Vulkan | 1.2 | — |
Shader model | 6.4 | 4.0 |
CUDA | — | 1.0 |
Release date | — | May 2nd, 2007 |
---|---|---|
Generation | — | Tesla |
Production | — | End-of-life |
Launch price | — | 1,499 USD |
Interface | — | PCIe 1.0 x16 |